release/src-rt-6.x.4708/router/others/LinkAgg

   1 #!/bin/sh
   2 # Written By KAD
   3 # Dynamic Link Aggregation Setup
   4 # Version 1.5
   5
   6 Help()
   7 {
   8         echo -e "\n----  Link Aggregation Version 1.5 Help  ----"
   9         echo -e "\nDynamically enable Link Aggregation using 802.3ad"
  10         echo "802.3ad requires a Switch/PC/NAS which..."
  11         echo "also supports 802.3ad to function correctly"
  12         echo -e "\nUsage: /path/to/LinkAgg <port> <port>"
  13         echo "Example: /path/to/LinkAgg 3 4"
  14         echo -e "Only 2 ports are currently supported\n"
  15         echo -e "\n--- Special Flags ---"
  16         echo -e "\nHelp: -h or --help"
  17         echo "Status: -s or --status"
  18         echo -e "Delete: -d or --delete"
  19         echo -e "Version: -v or --version\n"
  20         exit
  21 }
  22
  23 #Set all needed bonding parameters
  24 Create_Bond()
  25 {
  26         # Insert bonding module and set parameters (802.3ad, 100ms MII link monitoring)
  27         modprobe bonding
  28         # 802.3ad mode
  29         echo 802.3ad > /sys/class/net/${1}/bonding/mode
  30         # LACPDUs every 1 sec
  31         echo fast > /sys/class/net/${1}/bonding/lacp_rate
  32         # Bring up bond
  33         ip link set ${1} up
  34         # 100msec MII link monitoring
  35         echo 100 > /sys/class/net/${1}/bonding/miimon
  36         # enslave vlans to bond
  37         echo +${2} > /sys/class/net/${1}/bonding/slaves
  38         echo +${3} > /sys/class/net/${1}/bonding/slaves
  39         # Bridge the bond allowing AP access
  40         brctl addif br0 ${1}
  41         # We allow these VLANs to access the AP
  42         iptables -I INPUT 1 -i ${2} -j ACCEPT
  43         iptables -I INPUT 1 -i ${3} -j ACCEPT
  44         iptables -I INPUT 1 -i ${1} -j ACCEPT
  45         #Check Bond Status
  46         sleep 10
  47         Check_Bond_Status BondCreated
  48         echo -e "\nBond Created Successfully\n"
  49 }
  50
  51 # Delete Bond Function
  52 Delete_Bond()
  53 {
  54         # Get vlan's used in current bond
  55         DELETEVLAN1=$(cat /sys/class/net/bond0/bonding/slaves | cut -d ' ' -f 1)
  56         DELETEVLAN2=$(cat /sys/class/net/bond0/bonding/slaves | cut -d ' ' -f 2)
  57         # Remove bonding module, this also deletes bond0
  58         modprobe -r bonding
  59         # Remove dead vlan's
  60         if [[ $DELETEVLAN1 != "" -o $DELETEVLAN1 != NULL ]]; then
  61                 vconfig rem $DELETEVLAN1
  62                 DeadVLAN1="Removed Dead $DELETEVLAN1"
  63         fi
  64         if [[ $DELETEVLAN2 != "" -o $DELETEVLAN2 != NULL ]]; then
  65                 vconfig rem $DELETEVLAN2
  66                 DeadVLAN2="Removed Dead $DELETEVLAN2"
  67         fi
  68         #Second check for -d flag allows delete function to be used in new bond creation as well as old bond removal
  69         if [[ "$1" = "-d" -o "$1" = "--delete" ]]; then
  70                 # Set vlan1 back to default
  71                 robocfg vlan 1 ports "1 2 3 4 8t"
  72                 ReturnDefaultPorts="vlan1 default ports restored to - 1 2 3 4 8t"
  73                 echo -e "\nbond0 Deleted\n"
  74                 echo "$ReturnDefaultPorts"
  75                 echo "$DeadVLAN1"
  76                 echo -e "$DeadVLAN2\n"
  77                 exit
  78         else
  79                 return
  80         fi
  81 }
  82
  83 # Status Checker
  84 Check_Bond_Status()
  85 {
  86         Check1=$(ip link show | grep bond0: | cut -d '<' -f 2 | cut -d ',' -f 4)
  87         if [ "$Check1" != "UP" ]; then
  88                 Check1=NONE
  89                 Error1="Status : bond0 not UP"
  90         fi
  91         CHECKVLAN1=$(cat /sys/class/net/bond0/bonding/slaves | cut -d ' ' -f 1)
  92         CHECKVLAN2=$(cat /sys/class/net/bond0/bonding/slaves | cut -d ' ' -f 2)
  93         if [[ "$CHECKVLAN1" = "" -o "$CHECKVLAN1" = NULL ]]; then
  94                 CHECKVLAN1=NONE
  95                 PORT1=NONE
  96                 Check2=NONE
  97                 Error2="Status : Slave 1 does not exist"
  98         else
  99                 Check2=$(ip link show | grep "$CHECKVLAN1" | cut -d '<' -f 2 | grep -o ,UP, | grep -o UP)
 100                 if [ "$Check2" != "UP" ]; then
 101                         PORT1=NONE
 102                         Check2=Down
 103                         Error3="Status : Slave 1 not UP"
 104                 elif [ "$Check2" = "UP" ]; then
 105                         PORT1=$(robocfg show | grep "$CHECKVLAN1" | cut -d ':' -f 3 | sed -e "s/^ //" | cut -d ' ' -f 1)
 106                 fi
 107         fi
 108         if [[ "$CHECKVLAN2" = "" -o "$CHECKVLAN2" = NULL ]]; then
 109                 CHECKVLAN2=NONE
 110                 PORT2=NONE
 111                 Check3=NONE
 112                 Error4="Status : Slave 2 does not exist"
 113         else
 114                 Check3=$(ip link show | grep "$CHECKVLAN2" | cut -d '<' -f 2 | grep -o ,UP, | grep -o UP)
 115                 if [ "$Check3" != "UP" ]; then
 116                         PORT2=NONE
 117                         Check3=Down
 118                         Error5="Status : Slave 2 not UP"
 119                 elif [ "$Check3" = "UP" ]; then
 120                         PORT2=$(robocfg show | grep "$CHECKVLAN2" | cut -d ':' -f 3 | sed -e "s/^ //" | cut -d ' ' -f 1)
 121                 fi
 122         fi
 123         WANACCESS=$(brctl show | grep bond0 | awk '{$1=$1}{ print }')
 124         if [ "$WANACCESS" != "bond0" ]; then
 125                 WANACCESS=NONE
 126                 Error6="Status : bond0 not part of br0 - no WAN Access"
 127         fi
 128         # check if status call was done by Create bond function
 129         if [ "$1" = "BondCreated" ]; then
 130                 # if -d flag is set and any of these status checks fail, delete bond0, this is part of error recovery after new bond creation
 131                 if [[ "$WANACCESS" = "NONE" -o "$Check1" = "NONE" -o "$CHECKVLAN1" = "NONE" -o "$PORT1" = "NONE" -o "$Check2" = "NONE" -o "$Check2" = "Down" -o "$CHECKVLAN2" = "NONE" -o "$PORT2" = "NONE" -o "$Check3" = "NONE" -o "$Check3" = "Down" ]]; then
 132                         Delete_Bond -d
 133                 else
 134                         return
 135                 fi
 136         fi
 137         echo -e "\n--- Bond Errors ---"
 138         echo "$Error1"
 139         echo "$Error2"
 140         echo "$Error3"
 141         echo "$Error4"
 142         echo "$Error5"
 143         echo "$Error6"
 144         echo -e "\n--- Bond Status ---\n"
 145         echo -e "Bond Status: bond0 $Check1"
 146         echo -e "Bridge to WAN Status: Member of br0=$WANACCESS"
 147         echo -e "Slave 1 Status: vlan=$CHECKVLAN1 Link=$Check2 Port=$PORT1"
 148         echo -e "Slave 2 Status: vlan=$CHECKVLAN2 Link=$Check3 Port=$PORT2\n"
 149         exit
 150 }
 151
 152 #Version Flag
 153 if [[ "$1" = "-v" -o "$1" = "--version" ]]; then
 154         Help
 155 fi
 156
 157 # Status Check Flag
 158 if [[ "$1" = "-s" -o "$1" = "--status" ]]; then
 159         Check_Bond_Status
 160 fi
 161
 162 # Delete Bond Flag
 163 if [[ "$1" = "-d" -o "$1" = "--delete" ]]; then
 164         Delete_Bond $1
 165 fi
 166
 167 # Enable Help Menu
 168 if [[ "$1" = "-h" -o "$1" = "--help" ]]; then
 169         Help
 170 fi
 171
 172 # Number of ports must equal 2
 173 if [[ "$#" -lt "2" -o "$#" -gt "2" ]]; then
 174         echo -e "\nError : Incorrect Number of Ports\n"
 175         Help
 176 fi
 177
 178 # The Ports Must not be the same
 179 if [ "$1" = "$2" ]; then
 180         echo -e "\nError : Port Entries Must Be Unique\n"
 181         Help
 182 fi
 183
 184 # Valid port1 entries are 1,2,3,4
 185 if [[ "$1" != "1" && "$1" != "2" && "$1" != "3" && "$1" != "4" ]]; then
 186         echo -e "\nError : Port1 : Not A Valid Port\n"
 187         Help
 188 fi
 189
 190 # Valid port2 entries are 1,2,3,4
 191 if [[ "$2" != "1" && "$2" != "2" && "$2" != "3" && "$2" != "4" ]]; then
 192         echo -e "\nError : Port2 : Not A Valid Port\n"
 193         Help
 194 fi
 195
 196 #Find how many vlans exist
 197 VLANS=$(ip link show | grep vlan* | cut -d ' ' -f 2 | cut -d '@' -f 1)
 198 #If only 1 vlan exist
 199 if [ ${#VLANS} = "5" ]; then
 200         #Check if only 1 vlan exist it should be vlan1
 201         if [ "$VLANS" = "vlan1" ]; then
 202                 VLAN1="1 2 3 4 8t"
 203                 TMP=$(echo $VLAN1 | sed -e "s/$1 //g")
 204                 TMP1=$(echo $TMP | sed -e "s/$2 //g")
 205                 robocfg vlan 1 ports "$TMP1"
 206                 robocfg vlan 3 ports "$1 8t"
 207                 robocfg vlan 4 ports "$2 8t"
 208                 # Create the interfaces
 209                 vconfig add eth0 $1
 210                 vconfig add eth0 $2
 211                 BONDS=$(ip link show | grep bond0: | cut -d ' ' -f 2 | cut -d ':' -f 1)
 212                 #Check that bond0 does not exist
 213                 if [ ${#BONDS} = "0" ]; then
 214                         Create_Bond bond0 vlan3 vlan4
 215                 #If bond0 already exist remove it
 216                 else
 217                         Delete_Bond
 218                         Create_Bond bond0 vlan3 vlan4
 219                 fi
 220         #Only 1 vlan exist but it's not vlan1
 221         else
 222                 echo -e "\nBonding Failed WTF!!\n"
 223                 Help
 224         fi
 225 # if more than 1 vlan exist
 226 else
 227         #Find first available vlan
 228         VLAN2=vlan$1
 229         tmp=$(echo "$VLANS" | grep "$VLAN2")
 230         a=$1
 231         # vlan2 is used by system internals and does not show up in ip link, useage of vlan2 is not allowed
 232         if [ $VLAN2 = "vlan2" ]; then
 233                 a=`expr $a + 1`
 234                 VLAN2=vlan$a
 235                 tmp=$(echo "$VLANS" | grep "$VLAN2")
 236         fi
 237         while [[ "$tmp" = "$VLAN2" ]];
 238         do
 239                 a=`expr $a + 1`
 240                 VLAN2=vlan$a
 241                 tmp=$(echo "$VLANS" | grep "$VLAN2")
 242                 # vlan2 is used by system internals and does not show up in ip link, useage of vlan2 is not allowed
 243                 if [ $VLAN2 = "vlan2" ]; then
 244                         a=`expr $a + 1`
 245                         VLAN2=vlan$a
 246                         tmp=$(echo "$VLANS" | grep "$VLAN2")
 247                 fi
 248         done
 249         # Create First vlan for bond
 250         # Remove port from vlan1 so we can use it in bond
 251         VLAN2=$( echo -e "$VLAN2" | sed -e "s/vlan//g" )
 252         VLAN1="1 2 3 4 8t"
 253         TMP=$(echo "$VLAN1" | sed -e "s/$1 //g")
 254         robocfg vlan 1 ports "$TMP"
 255         robocfg vlan $VLAN2 ports "$1 8t"
 256         vconfig add eth0 $VLAN2
 257         #Find second available vlan
 258         VLAN3=vlan$2
 259         VLANS=$(ip link show | grep vlan* | cut -d ' ' -f 2 | cut -d '@' -f 1)
 260         tmp1=$(echo "$VLANS" | grep "$VLAN3")
 261         b=$2
 262         # vlan2 is used by system internals and does not show up in ip link, useage of vlan2 is not allowed
 263         if [ $VLAN3 = "vlan2" ]; then
 264                 b=`expr $b + 1`
 265                 VLAN3=vlan$b
 266                 tmp1=$(echo "$VLANS" | grep "$VLAN3")
 267         fi
 268         while [[ "$tmp1" = "$VLAN3" ]];
 269         do
 270                 b=`expr $b + 1`
 271                 VLAN3=vlan$b
 272                 tmp1=$(echo "$VLANS" | grep "$VLAN3")
 273                 # vlan2 is used by system internals and does not show up in ip link, useage of vlan2 is not allowed
 274                 if [ $VLAN3 = "vlan2" ]; then
 275                         b=`expr $b + 1`
 276                         VLAN3=vlan$b
 277                         tmp1=$(echo "$VLANS" | grep "$VLAN3")
 278                 fi
 279         done
 280         # Create Second vlan for bond
 281         # Remove port from vlan1 so we can use it in bond
 282         VLAN3=$( echo "$VLAN3" | sed -e "s/vlan//g" )
 283         TMP1=$(echo "$TMP" | sed -e "s/$2 //g")
 284         robocfg vlan 1 ports "$TMP1"
 285         robocfg vlan $VLAN3 ports "$2 8t"
 286         vconfig add eth0 $VLAN3
 287         BONDS=$(ip link show | grep bond0: | cut -d ' ' -f 2 | cut -d ':' -f 1)
 288         #Check that bond0 does not exist
 289         if [ ${#BONDS} = "0" ]; then
 290                 Create_Bond bond0 vlan$VLAN2 vlan$VLAN3
 291         else
 292         #If bond0 already exist remove it
 293                 Delete_Bond
 294                 Create_Bond bond0 vlan$VLAN2 vlan$VLAN3
 295         fi
 296 fi
 297